Results 41 to 50 of about 186,089 (328)

Differential Effects of Psychological and Physical Stress on the Sleep Pattern in Rats [PDF]

open access: yes, 2007
In the present study, we investigated the acute effects of 2 different kinds of stress, namely physical stress (foot shock) and psychological stress (non-foot shock) induced by the communication box method, on the sleep patterns of rats.
Araki, Hiroaki   +3 more
core   +1 more source

Closed-Loop Targeted Memory Reactivation during Sleep Improves Spatial Navigation [PDF]

open access: yes, 2018
Sounds associated with newly learned information that are replayed during non-rapid eye movement (NREM) sleep can improve recall in simple tasks. The mechanism for this improvement is presumed to be reactivation of the newly learned memory during sleep ...
Diana M. Armstrong   +10 more
core   +2 more sources

Sleep–wake patterns, non-rapid eye movement, and rapid eye movement sleep cycles in teenage narcolepsy [PDF]

open access: yesSleep Medicine, 2017
To further characterize sleep disorders associated with narcolepsy, we assessed the sleep-wake patterns, rapid eye movement (REM), and non-REM (NREM) sleep cycles in Chinese teenagers with narcolepsy.A total of 14 Chinese type 1 narcoleptic patients (13.4 ± 2.6 years of age) and 14 healthy age- and sex-matched control subjects (13.6 ± 1.8 years of age)
Xing, Xu   +6 more
openaire   +2 more sources

Targeted memory reactivation in human REM sleep elicits detectable reactivation

open access: yeseLife, 2023
It is now well established that memories can reactivate during non-rapid eye movement (non-REM) sleep, but the question of whether equivalent reactivation can be detected in rapid eye movement (REM) sleep is hotly debated.
Mahmoud EA Abdellahi   +3 more
doaj   +1 more source

Trait-like characteristics of the sleep EEG across adolescent development [PDF]

open access: yes, 2011
Waking and sleep data in adults show high heritability and trait-like characteristics in EEG spectra. This phenomenon has not been examined in children and adolescents where brain development influences the EEG. The present study examines whether a trait-
Achermann, P, Carskadon, M A, Tarokh, L
core   +1 more source

Dreaming During Non-rapid Eye Movement Sleep in the Absence of Prior Rapid Eye Movement Sleep [PDF]

open access: yesSleep, 2004
There is a long-standing controversy surrounding the existence of dream experiences during non-rapid eye movement (NREM) sleep. Previous studies have not answered the question whether this "NREM dream" originates from the NREM sleep mechanism because the subject might simply be recalling experiences from the preceding rapid eye movement (REM) sleep.We ...
Hiroyuki, Suzuki   +9 more
openaire   +2 more sources

Dietary Prebiotics and Bioactive Milk Fractions Improve NREM Sleep, Enhance REM Sleep Rebound and Attenuate the Stress-Induced Decrease in Diurnal Temperature and Gut Microbial Alpha Diversity. [PDF]

open access: yes, 2016
Severe, repeated or chronic stress produces negative health outcomes including disruptions of the sleep/wake cycle and gut microbial dysbiosis. Diets rich in prebiotics and glycoproteins impact the gut microbiota and may increase gut microbial species ...
Berg, Brian M   +7 more
core   +1 more source

Effects of valerian extract on the sleep-wake cycle in sleep-disturbed rats. [PDF]

open access: yes, 2005
The present study was performed to investigate the effects of valerian extract on the sleep-wake cycle using sleep-disturbed model rats. A significant shortening in sleep latency was observed with valerian extract at doses of 1000 and 3000 mg/kg.
Fujimura, Katsuyuki   +3 more
core   +1 more source

Quantifying sleep architecture dynamics and individual differences using big data and Bayesian networks [PDF]

open access: yes, 2018
The pattern of sleep stages across a night (sleep architecture) is influenced by biological, behavioral, and clinical variables. However, traditional measures of sleep architecture such as stage proportions, fail to capture sleep dynamics.
Cellini, Nicola   +4 more
core   +2 more sources

Effect of colostrum feeding method and presence of dam on the sleep, rest and sucking behaviour of newborn calves [PDF]

open access: yes, 2008
"In rats, sucking milk reduces anxiety and promotes non-rapid eye movement (NREM) sleep, and in calves it induces resting but the effect on sleep is unknown. Here, we investigated how calves' sleep was affected by colostrum feeding methods.
Hepola, Helena   +3 more
core   +1 more source

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